public void useReserve() {
if (reserves >= 1) {
if (tank.isEmpty()) {
dead = false;
}
tank.setFuelLevel(tank.getFuelCapacity());
reserves--;
}
}
public void move(int distance, Direction direction) {
if (!dead) {
move(distance, direction, true);
if (tank.isEmpty()) {
dead = true;
notifyPropertyChangeListeners(new PropertyChangeEvent(this, "dead", false, true));
}
}
}
public void move(int distance, Direction direction, boolean useFuel) {
switch (direction) {
case UP:
location.y -= distance;
break;
case DOWN:
location.y += distance;
break;
case LEFT:
location.x -= distance;
break;
case RIGHT:
location.x += distance;
break;
default:
assert false : "Bad direction: " + location;
}
if (useFuel) tank.useFuel(1);
}
public void refuel(int fuel) {
tank.refuel(fuel);
if (!tank.isEmpty()) {
setDead(false);
}
}